| Rank | Country | Airports - with unpaved runways |
| Bahrain | void |
182 | Bangladesh | total: 1 1,524 to 2,437 m: 1 (2008) |
| Barbados | void |
87 | Belarus | total: 30 2,438 to 3,047 m: 1 1,524 to 2,437 m: 1 914 to 1,523 m: 2 under 914 m: 26 (2008) |
118 | Belgium | total: 15 914 to 1,523 m: 1 under 914 m: 14 (2008) |
73 | Belize | total: 40 2,438 to 3,047 m: 1 914 to 1,523 m: 12 under 914 m: 27 (2008) |
157 | Benin | total: 4 2,438 to 3,047 m: 1 1,524 to 2,437 m: 1 914 to 1,523 m: 2 (2008) |
| Bermuda | void |
183 | Bhutan | total: 1 914 to 1,523 m: 1 (2008) |
5 | Bolivia | total: 993 over 3,047 m: 1 2,438 to 3,047 m: 4 1,524 to 2,437 m: 58 914 to 1,523 m: 186 under 914 m: 744 (2008) |
109 | Bosnia and Herzegovina | total: 18 1,524 to 2,437 m: 1 914 to 1,523 m: 7 under 914 m: 10 (2008) |
52 | Botswana | total: 67 1,524 to 2,437 m: 3 914 to 1,523 m: 54 under 914 m: 10 (2008) |
| Bouvet Island | void |
2 | Brazil | total: 3,442 1,524 to 2,437 m: 85 914 to 1,523 m: 1,541 under 914 m: 1,816 (2008) |
| British Indian Ocean Territory | void |
171 | British Virgin Islands | total: 2 914 to 1,523 m: 2 (2008) |
184 | Brunei | total: 1 914 to 1,523 m: 1 (2008) |
47 | Bulgaria | total: 77 1,524 to 2,437 m: 1 914 to 1,523 m: 7 under 914 m: 69 (2008) |
99 | Burkina Faso | total: 24 1,524 to 2,437 m: 4 914 to 1,523 m: 12 under 914 m: 8 (2008) |
60 | Burma | total: 53 over 3,047 m: 1 1,524 to 2,437 m: 9 914 to 1,523 m: 13 under 914 m: 30 (2008) |